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Suppose that a three stage process in a nuclear reactor had reliability ratings of .98 at
each station and that only one stage needed to be successful for the process to work. If
the plant wants to establish 6-sigma standards, what % reliable redundant controls need
to be added to each station.
Suppose that a three stage process had reliability ratings of .7, .8, and .9 at each station
and that a failure at any station represented a failure for the entire process. If each
station is given a redundant check with .9 reliability, what is the increase in system
reliability?
In retail outlets, customers are usually processed on a first come, first served basis.
Why? Is the express lane in the supermarket an exception? Craft a sequencing rule to
explain express lane behavior.
__________ is the stage in product life cycle at which it is a poor time to change
quality.
Compare MRP in services to MRP in manufacturing. Utilize a simple example in your
comparison.
